Can someone recommend me a piece to play?

It's the beginning of the semester here, and I was wondering if anyone here could recommend me a piece to prepare for my first lesson (this coming Thursday) Right now I've been working on the Capuzzi, however I'm kind of getting tired of it.

This semester my course load is pretty lite, so I'm looking for something a bit more challenging. I think Dragonetti is a bit too tough for me right now. A fellow bass player recommended Franz Keypers Romance and Rondo.. that looks pretty good, for now that's my top choice unless someone else can recommend something better.

I've never done much thumb position work.. So i would like someone that has SOME in it.. but not a lot.

I'm a big fan of eastern European music, if anyone can recommend any that is about at my difficulty level and easily obtainable that would be great.